PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2198-78Ring,piston

Lawler Manufacturing Company, Inc. · NSN 3040-00-836-1351 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-00-836-1351 — this item is cataloged by the U.S. Government under National Stock Number 3040-00-836-1351. Primary manufacturer part number: 2198-78.
Features
  • Ring,piston — FSC 3040
  • Ring Style: CONCENTRIC
  • Joint Style: VERTICAL JOINT
  • Radial Wall Thickness: 0.0810 INCHES NOMINAL IN
  • Material: IRON OVERALL
  • Surface Treatment: NICKEL OVERALL
  • Standard Bore Diameter: 1.875 INCHES IN
  • Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE
Applications
  • Applications requiring Iron Overall construction
General Description

The Ring,piston, cataloged under National Stock Number 3040-00-836-1351, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Lawler Manufacturing Company, Inc.. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-00-836-1351
Primary Part Number2198-78
Item NameRing,piston
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerLawler Manufacturing Company, Inc.
StatusACTIVE
Ring StyleCONCENTRIC
Joint StyleVERTICAL JOINT
Radial Wall Thickness0.0810 INCHES NOMINAL IN
MaterialIRON OVERALL
Surface TreatmentNICKEL OVERALL
Standard Bore Diameter1.875 INCHES IN
Cross-Sectional Shape StylePLAIN RECTANGULAR, STRAIGHT FACE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
6810-00-242-3642 INTERCHANGEABLE
Quinolinol
5950-00-251-497721000980-21-98 INTERCHANGEABLE
Coil,radio Frequency
Thales Components Corp Div Thales Components Corporation
4240-00-258-20542181 INTERCHANGEABLE
Goggles,industrial
Iso Group Inc Dba Iso Group Inc
5999-00-306-0966 INTERCHANGEABLE
Contact,electrical
5340-00-818-56829951898 INTERCHANGEABLE
Bumper
Us Army Aviation and Missile Command
5950-00-847-04612135538 INTERCHANGEABLE
Transformer,power
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
3040-00-881-04192198 INTERCHANGEABLE
Lining,friction
Panish Marine Systems, Llc
6145-01-047-11332198 INTERCHANGEABLE
Braid,wire
Belden, Inc.
4730-01-318-6246219-8 INTERCHANGEABLE
Plug,pipe
Parker-Hannifin Corp Div Fluid System Connector Division
5330-01-333-45052198 INTERCHANGEABLE
Seal,nonmetallic Special Shaped
Zodiac of North America, Inc. Dba Zodiac of North America Inc Div Milpro
Cross-Reference Index
Part NumberManufacturer
2198 Lawler Manufacturing Company, Inc. (USA)
2198-78 PRIMARY Lawler Manufacturing Company, Inc. (USA)
Related Parts
6810-00-242-3642INTERCHANGEABLE
QUINOLINOL
5950-00-251-4977INTERCHANGEABLE
COIL,RADIO FREQUENCY
21000980-21-98
4240-00-258-2054INTERCHANGEABLE
GOGGLES,INDUSTRIAL
2181
5999-00-306-0966INTERCHANGEABLE
CONTACT,ELECTRICAL
5340-00-818-5682INTERCHANGEABLE
BUMPER
9951898
5950-00-847-0461INTERCHANGEABLE
TRANSFORMER,POWER
2135538
3040-00-881-0419INTERCHANGEABLE
LINING,FRICTION
2198
6145-01-047-1133INTERCHANGEABLE
BRAID,WIRE
2198
4730-01-318-6246INTERCHANGEABLE
PLUG,PIPE
219-8
5330-01-333-4505INTERCHANGEABLE
SEAL,NONMETALLIC SPECIAL SHAPED
2198
5365-01-336-6448INTERCHANGEABLE
SPACER,SLEEVE
2198

Frequently Asked Questions

What is NSN 3040-00-836-1351?

NSN 3040-00-836-1351 is a Ring,piston, manufactured by Lawler Manufacturing Company, Inc., classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-00-836-1351?

NSN 3040-00-836-1351 has 2 cross-referenced part numbers: 2198 (Lawler Manufacturing Company, Inc.), 2198-78 (Lawler Manufacturing Company, Inc.).

What NSN replaces 3040-00-836-1351?

There are 11 known substitutes for 3040-00-836-1351: 6810-00-242-3642, 5950-00-251-4977, 4240-00-258-2054 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2198-78?

Key specifications for 2198-78: Ring Style: CONCENTRIC; Joint Style: VERTICAL JOINT; Radial Wall Thickness: 0.0810 INCHES NOMINAL IN; Material: IRON OVERALL. 8 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com